I had Carmel 1 for almost 3 years. They sounded top down (i.e. emphasis on top and midrange) with an Odyssey Khartago Extreme amp UNTIL I put a Spectral 260 amp in. The low end really came to life then. I didn' t do any measurements but I can attest that they were very well balanced and sounded great. Listened to them for many hours on end.. Great speakers from a great company IMHO